sci-libs/cuba: new package, add 4.2.2

Closes: #1291
Co-authored-by: Nowa Ammerlaan <andrewammerlaan@gentoo.org>
Signed-off-by: Alexander Puck Neuwirth <alexander@neuwirth-informatik.de>

sci-libs/cuba/Manifest

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+DIST Cuba-4.2.2.tar.gz 744120 BLAKE2B 34cb4954a2659b739f7c0495772920c6d8c1e370b8636a88ed1f2e4dacc73384c71a27d6e37f618a72ba710f87da71ddc5329723be030b789a4677af3b4c540f SHA512 afa9eefcb6993d72ae291138889fde017e4ecca75d8b80922a529a6b653a10fa6883f56d1cf54715b61bb3e5c1c631c5a93d4c4d6cf82052235b1349fb0527a7

sci-libs/cuba/cuba-4.2.2.ebuild

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+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools fortran-2 toolchain-funcs
+
+MY_P=Cuba-${PV}
+
+DESCRIPTION="The Cuba library for multidimensional numerical integration"
+HOMEPAGE="http://www.feynarts.de/cuba"
+SRC_URI="http://www.feynarts.de/cuba/${MY_P}.tar.gz"
+S="${WORKDIR}/${MY_P}"
+
+LICENSE="LGPL-3"
+SLOT="0"
+KEYWORDS="~amd64"
+
+IUSE="doc static-libs"
+
+RESTRICT="test" # broken...
+
+src_prepare() {
+	default
+	eautoreconf
+}
+
+src_compile() {
+	tc-export CC CXX FC AR
+	sed 's/CFLAGS =/CFLAGS = -fPIC/g' --in-place makefile || die
+	sed 's/FFLAGS =/FFLAGS = -fPIC/g' --in-place makefile || die
+	emake lib -j1
+	# make shared lib
+	FILES=$(${AR} xv libcuba.a |sed 's/x - //g' || die)
+	# unquoted FILES since newlines should be replaced by spaces
+	${CC} -shared -Wall $FILES -lm -o libcuba.so || die
+}
+
+src_install() {
+	#default # broken...
+
+	doheader cuba.h
+	use static-libs && dolib.a libcuba.a
+	dolib.so libcuba.so
+	use doc && dodoc cuba.pdf
+}

sci-libs/cuba/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="project">
+    <email>sci-physics@gentoo.org</email>
+    <name>Gentoo Physics Project</name>
+  </maintainer>
+  <maintainer type="person">
+    <email>alexander@neuwirth-informatik.de</email>
+    <name>Alexander Puck Neuwirth</name>
+  </maintainer>
+  <longdescription>
+    The Cuba library offers a choice of four independent routines for multidimensional numerical integration: Vegas, Suave, Divonne, and Cuhre.
+  </longdescription>
+</pkgmetadata>